JPH07176263A - Plate-shaped discharge electrode for self discharge type static eliminator - Google Patents

Abstract

PURPOSE:To maintain a static eliminating effect for a long period by improving the static eliminating effect, and further preventing a discharge electrode from its bending deformation. CONSTITUTION:A conductive substance of 2mum or less thickness is vacuum evaporated on a plate having electric insulation, to make this substance serve as a passage for a discharge current. In this one side, one or more angular protrusions 3 are formed on a discharge electrode, to provide protecting protrusions 4 on both sides of this angular mountain, and the discharge electrode, preventing its bending deformation, is used to serve as a single plate- shaped discharge electrode. One or more of this discharge electrode is fixed to a mounting base 5.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】この発明は静電気が帯電した物体
より、この除電効果を良好にし並びに板状放電電極の曲
変を防止し除電効果を長期間存続さす。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention improves the effect of eliminating static electricity from an object charged with static electricity and prevents the plate-shaped discharge electrode from being bent, so that the effect of eliminating static electricity can be maintained for a long period of time.

【０００２】[0002]

【従来の技術】従来の自己放電式除電器の板状放電電極
は、厚さ約１００μｍ以上の物体内に導電性粉末を浸透
させた板状、または厚さ約１００μｍの合成樹脂に導電
性粉末を混入した板状等の一辺を山形に裁断し、この部
分を板状放電電極としたものであり、この先端の厚さが
厚いためこの面積が大きくなるので放電開始電圧が高く
なり除電効果もこれにつれて悪くなる。また板状放電電
極の先端が細くまたは、とがつているため機械的に弱
く、先端が被除電物体に接触したとき先端が曲変したま
まとなりまたは、破損し板状放電電極と被除電物体との
間隔が広くなって除電効果が更に悪化する。2. Description of the Related Art A plate-shaped discharge electrode of a conventional self-discharge type static eliminator has a plate-shaped structure in which a conductive powder is impregnated into an object having a thickness of about 100 μm or more, or a synthetic resin having a thickness of about 100 μm. It is a plate-shaped discharge electrode in which one side is cut into a chevron shape by mixing a plate-like material mixed with, and this area is large because the thickness of this tip is large, so the discharge start voltage is high and the static elimination effect is also It gets worse with this. In addition, the tip of the plate-shaped discharge electrode is thin or sharp and mechanically weak, and when the tip comes into contact with the object to be discharged, the tip remains bent or damaged and the plate-shaped discharge electrode and the object to be discharged are The interval between the two becomes wider and the static elimination effect becomes worse.

【０００３】[0003]

【発明が解決しようとする課題】自己放電式除電器の除
電効果を良くすることは、放電開始電圧を低くすること
であり、そのために板状放電電極の先端の面積を小さく
することは、導電性部分の厚さを薄くすることである。
放電開始電圧は、放電電極の先端部の放電電流の通路の
面積に比例する。板状放電電極と被除電物体との接触で
簡単に板状放電電極の先端が曲変したままになり、板状
放電電極の先端と被除電物体との間隔が広くなり除電効
果も更に悪くなる。これを防止するために１個以上の角
山の板状放電電極の両側にこれを保護するための突起を
設けることである。To improve the static elimination effect of the self-discharge type static eliminator is to lower the discharge starting voltage. Therefore, to reduce the area of the tip of the plate-shaped discharge electrode is to reduce the conductivity. It is to reduce the thickness of the sex part.
The discharge start voltage is proportional to the area of the passage of the discharge current at the tip of the discharge electrode. The tip of the plate-shaped discharge electrode easily remains bent due to contact between the plate-shaped discharge electrode and the object to be discharged, and the distance between the tip of the plate-shaped discharge electrode and the object to be discharged is widened, and the charge-eliminating effect becomes worse. . In order to prevent this, one or more corner-shaped plate-shaped discharge electrodes are provided with protrusions on both sides thereof to protect them.

【０００４】[0004]

【課題を解決するための手段】この発明は放電電流の通
路となる部分の厚さを薄くするために導電性物質を真空
蒸着で厚さ２μｍ以下とし、従来品の厚さ約１００μｍ
に比べ５０分の１以下の厚さであり、これにつれて板状
放電電極の先端の面積も小さくなるので放電開始電圧も
小さくなって除電効果も良くなる。また、板状放電電極
の放電部として角山を１個以上に、これらの両側に保護
するための突起を付け板状放電電極と被除電物質とが接
触しても曲変する事がなく除電効果が長期間存続する。According to the present invention, in order to reduce the thickness of a portion serving as a passage of a discharge current, a conductive substance is vacuum-deposited to a thickness of 2 μm or less, and a conventional product has a thickness of about 100 μm.
The thickness is not more than 1/50 of that of the above, and the area of the tip of the plate-like discharge electrode becomes smaller accordingly, so that the discharge starting voltage becomes smaller and the static elimination effect becomes better. Further, the discharge portion of the plate-shaped discharge electrode has one or more corner ridges, and projections for protection are provided on both sides of these ridges so that the plate-shaped discharge electrode and the substance to be discharged are not bent and are not bent. Will survive for a long time.

【０００５】[0005]

【作用】この発明は、放電電流の通路となる部分の厚さ
が２μｍ以下で、放電電極の角山の先端の放電する部分
の面積は非常に小さいので、これにつれて放電開始電圧
も低くなり除電効果も良くなる。また、１個以上の放電
電極の角山の両側に放電電極の角山と被除電物体との接
触により角山の曲変を防止するため保護突起があるので
板状放電電極の角山と被除電物体とが接触しても曲変す
る事がなく両者の間隔が一定であるため除電効果が長期
間存続する。According to the present invention, since the thickness of the portion which becomes the passage of the discharge current is 2 μm or less, and the area of the discharge portion at the tip of the corner of the discharge electrode is very small, the discharge starting voltage also decreases accordingly, and the static elimination effect is obtained. Also gets better. Further, since there are protective protrusions on both sides of the angled ridges of the discharge electrode to prevent the angled ridges of the discharge electrode from contacting with the object to be neutralized, there are protective protrusions between the ridges of the plate-shaped discharge electrode and the object to be neutralized. Even if they come into contact with each other, they will not be bent and the distance between them will be constant, so the static elimination effect will last for a long time.

【０００６】[0006]

【実施例】図１に示す電気的絶縁板（１）として厚さ１
００μｍの合成樹脂板面に厚さ約０．５μｍのアルミニ
ュウム蒸着（２）を行つた板状を図２に示す１個以上の
角度約６０°の角山（３）を放電電極としこの両側に保
護突起（４）を設けたものを１板状放電電極とし、これ
を固定台（５）に１個以上取り付ける、また、蒸着する
物質の酸化防止、機械的に丈夫にするために蒸着面に電
気的絶縁性のある物質（６）を塗布することもあり、こ
の時は、自己放電式除電器を取付箇所に固定するとき取
付箇所との導電性を考え板状放電電極面と異なる辺に図
１に示す導電性塗料（７）を施す。また、静電容量的に
静電気が移動するときはこの導電性塗料（７）を不用と
する。蒸着する導電性物質としては、アルミニュウム、
金、銀、銅、白金、合金、金属酸化物等を使用した。ま
た、電気的絶縁板として合成樹脂板、紙類、皮革類、ゴ
ム板等を使用した。EXAMPLE An electrically insulating plate (1) shown in FIG. 1 has a thickness of 1
A 0.5 μm thick aluminum deposition (2) plate on a 00 μm synthetic resin plate surface is used as a discharge electrode with one or more angle peaks (3) with an angle of about 60 ° shown in FIG. One plate-shaped discharge electrode provided with protrusions (4) is attached to one or more fixed bases (5), and the vapor deposition surface is electrically protected to prevent oxidation of the substance to be vapor-deposited and mechanically strong. In some cases, a material (6) having a static insulating property may be applied. At this time, when fixing the self-discharge type static eliminator to the mounting location, consider the conductivity with the mounting location and draw on the side different from the plate-shaped discharge electrode surface. The conductive paint (7) shown in 1 is applied. When the static electricity moves electrostatically, the conductive paint (7) is not necessary. As the conductive material to be vapor-deposited, aluminum,
Gold, silver, copper, platinum, alloys, metal oxides, etc. were used. Also, synthetic resin plates, papers, leathers, rubber plates, etc. were used as the electrical insulating plates.

【０００７】[0007]

【発明の効果】除電効果の測定として図４に示す回路を
使用した。金属板（１２）とアース（８）との間に可変
式高圧電源（９）を接続する。金属板（１２）の上部に
１０ｍｍの間隔で自己放電式除電器の板状放電電極先端
（１０）となる位置にし、この自己放電式除電器と電流
計（１１）を介してアース（８）に接続する。測定法と
して、可変式高圧電源の電圧を段々に高くし電流計（１
１）が流れ始めるときの可変式高圧電源の電圧を放電開
始電圧とする。上記測定法での試験結果に於いて、従来
品の自己放電式除電器は放電開始電圧が最低２５００Ｖ
であったが、この発明によるものは約１２００Ｖであっ
た。そのためこの発明の除電効果は従来品と比べ良好で
あることを示した。板状放電電極の先端の曲変試験と
し、市販の複写機の出口に複写紙に板状放電電極の先端
が常時接触するように取り付けて曲変するまで通過した
複写紙の枚数で行った。従来品の自己放電式除電器は５
２０枚で板状放電電極の先端が曲変したままとなった。
この発明によるものは１５００枚通過しても板状放電電
極の先端は曲変していなかった。The circuit shown in FIG. 4 was used to measure the effect of static elimination. A variable high voltage power supply (9) is connected between the metal plate (12) and the ground (8). The metal plate (12) was placed at a position of the plate-shaped discharge electrode tip (10) of the self-discharge type static eliminator at an interval of 10 mm, and grounded (8) via this self-discharge type static eliminator and ammeter (11). Connect to. As a measuring method, the voltage of the variable high-voltage power supply is gradually increased and an ammeter (1
The voltage of the variable high-voltage power supply when 1) starts to flow is the discharge start voltage. According to the test results of the above measuring method, the discharge start voltage of the conventional self-discharge type static eliminator is at least 2500V.
However, the voltage according to the present invention was about 1200V. Therefore, it was shown that the static elimination effect of the present invention was better than that of the conventional product. The bending deformation test of the tip of the plate-shaped discharge electrode was carried out by attaching the copy paper to the exit of a commercially available copying machine so that the tip of the plate-shaped discharge electrode was always in contact with the copy paper, and the number of copy papers that passed through until it bent. The conventional self-discharge type static eliminator is 5
With 20 sheets, the tip of the plate-shaped discharge electrode remained bent.
In the device according to the present invention, the tip of the plate-shaped discharge electrode was not bent even after passing 1500 sheets.

【図面の簡単な説明】[Brief description of drawings]

【図１】板状放電電極の実施例を示す側面図である。FIG. 1 is a side view showing an embodiment of a plate-shaped discharge electrode.

【図２】板状放電電極の実施例を示す平面図である。FIG. 2 is a plan view showing an example of a plate-shaped discharge electrode.

【図３】板状放電電極の実施例を示す平面図である。FIG. 3 is a plan view showing an example of a plate-shaped discharge electrode.

【図４】放電開始電圧試験装置の回路図である。FIG. 4 is a circuit diagram of a discharge starting voltage test device.

【符号の説明】[Explanation of symbols]

１ 電気的絶縁板 ２ アルミニュウム蒸着 ３ 約６０°の角山 ４ 保護突起 ５ 固定台 ６ 電気的絶縁性のある物質 ７ 導電性塗料 ８ アース ９ 可変式高圧電源 １０ 板状放電電極先端 １１ 電流計 １２ 金属板 1 Electrical Insulation Plate 2 Aluminum Vapor Deposition 3 Square Angle of about 60 ° 4 Protective Protrusion 5 Fixing Stand 6 Electrically Insulating Material 7 Conductive Paint 8 Earth 9 Variable High-voltage Power Supply 10 Plate-shaped Discharge Electrode Tip 11 Ammeter 12 Metal Board

─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成７年３月３日[Submission date] March 3, 1995

【手続補正１】[Procedure Amendment 1]

【補正対象書類名】図面[Document name to be corrected] Drawing

【補正対象項目名】全図[Correction target item name] All drawings

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【図１】 [Figure 1]

【図２】 [Fig. 2]

【図３】 [Figure 3]

【図４】 [Figure 4]

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 電気絶縁性のある板状に導電性物質を厚
さ２μｍ以下に真空蒸着したもの、の一辺に角山を１個
以上と、これらの両側に保護するための突起とを組み合
わせたものを１板状放電電極とし、この板状放電電極を
１個以上でなる自己放電式除電器の板状放電電極1. An electrically insulating plate-shaped conductive material vacuum-deposited to a thickness of 2 μm or less, in which one or more corner ridges on one side and projections for protection on both sides thereof are combined. One plate-shaped discharge electrode, and a plate-shaped discharge electrode of a self-discharge type static eliminator comprising one or more plate-shaped discharge electrodes